Byzantine (?.)

• Machiavellian
• artful
• balled up
• calculating
• canny
• collusive
• complex
• complicated
• confounded
• confused
• connivent
• conniving
• conspiring
• contriving
• convoluted
• crabbed
• crafty
• cunning
• daedal
• designing
• devious
• elaborate
• embrangled
• entangled
• fouled up
• foxy
• gordian
• guileful
• implicated
• insidious
• intricate
• intriguing
• involuted
• involved
• knotted
• knotty
• knowing
• labyrinthian
• labyrinthine
• loused up
• many-faceted
• matted
• mazy
• meandering
• messed up
• mixed up
• mucked up
• multifarious
• pawky
• perplexed
• plotting
• ramified
• roundabout
• scheming
• screwed up
• shrewd
• slick
• sly
• snarled
• sophisticated
• stratagemical
• subtile
• subtle
• tangled
• tangly
• twisted
• up to
• wily